diff options
| author | siddardha naraharisetti <siddardhan@nvidia.com> | 2014-02-13 19:15:47 -0800 |
|---|---|---|
| committer | Raymond Poudrier <rapoudrier@nvidia.com> | 2014-03-10 17:22:37 -0700 |
| commit | 4c89828cdcdcd1683c80d3182b495b6c500ab28c (patch) | |
| tree | 5d8a762960e249012e3075b351e50725f2ac8578 /arch | |
| parent | b0a90d9e2cbca96e755f7e385665f1be97fa9a69 (diff) | |
arm: tegra: fix jdi 5" panel power on/off sequence
Fix the jdi panel power on sequence as below from rev01 spec
1. turn on avdd_lcd_3V0
2. enable enb gpio after a 3ms delay
3. turn on mipi data,clk lines
4. enable reset gpio after a 20ms delay
5. send exit_sleep_mode command after a 150ms delay
Fix the jdi panel power off sequence as below from rev14 spec
1. send enter_sleep_mode command
2. turn off mipi data,clk lines after a 80ms delay
3. disable reset gpio
4. disable enb gpio
5. turn off avdd_lcd_3v0 after a 5ms delay
increase the avdd_lcd_3V0 to 3.1V from 3V to compensate
for the voltage drop between pmic and display for 5" and 5.66"
panels
Bug 1429612
Bug 1384755
Change-Id: I09caed362df09a555986c5c511febe2e0d07e2fc
Signed-off-by: siddardha naraharisetti <siddardhan@nvidia.com>
Reviewed-on: http://git-master/r/367509
Reviewed-by: Raymond Poudrier <rapoudrier@nvidia.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-tegra/panel-j-1440-810-5-8.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-tegra/panel-j-720p-5.c | 17 |
2 files changed, 13 insertions, 6 deletions
diff --git a/arch/arm/mach-tegra/panel-j-1440-810-5-8.c b/arch/arm/mach-tegra/panel-j-1440-810-5-8.c index d320305aac6d..3967dcad43cb 100644 --- a/arch/arm/mach-tegra/panel-j-1440-810-5-8.c +++ b/arch/arm/mach-tegra/panel-j-1440-810-5-8.c @@ -494,7 +494,7 @@ static int dsi_j_1440_810_5_8_postpoweron(struct device *dev) pr_err("avdd_lcd_3v0_2v8 regulator enable failed\n"); goto fail; } - regulator_set_voltage(avdd_lcd_3v0_2v8, 3000000, 3000000); + regulator_set_voltage(avdd_lcd_3v0_2v8, 3100000, 3100000); } usleep_range(3000, 5000); diff --git a/arch/arm/mach-tegra/panel-j-720p-5.c b/arch/arm/mach-tegra/panel-j-720p-5.c index dcbee211ae07..4db04acf2f9f 100644 --- a/arch/arm/mach-tegra/panel-j-720p-5.c +++ b/arch/arm/mach-tegra/panel-j-720p-5.c @@ -1,7 +1,7 @@ /* * arch/arm/mach-tegra/panel-j-720p-5.c * - * Copyright (c) 2013, NVIDIA Corporation. All rights reserved. + * Copyright (c) 2013-2014, NVIDIA Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -32,6 +32,7 @@ #include "gpio-names.h" #define DSI_PANEL_EN_GPIO TEGRA_GPIO_PQ2 +#define DSI_PANEL_RST_GPIO TEGRA_GPIO_PH3 #define DSI_PANEL_RESET 1 @@ -394,6 +395,10 @@ fail: } static struct tegra_dsi_cmd dsi_j_720p_5_init_cmd[] = { + /* reset panel before exit_sleep_mode sequence */ + DSI_DLY_MS(20), + DSI_GPIO_SET(DSI_PANEL_RST_GPIO, 1), + DSI_DLY_MS(150), /* panel exit_sleep_mode sequence */ DSI_CMD_SHORT(DSI_DCS_WRITE_0_PARAM, DSI_DCS_EXIT_SLEEP_MODE, 0x0), DSI_SEND_FRAME(5), @@ -450,7 +455,7 @@ static int dsi_j_720p_5_postpoweron(struct device *dev) pr_err("avdd_lcd_3v0_2v8 regulator enable failed\n"); goto fail; } - regulator_set_voltage(avdd_lcd_3v0_2v8, 3000000, 3000000); + regulator_set_voltage(avdd_lcd_3v0_2v8, 3100000, 3100000); } usleep_range(3000, 5000); @@ -471,10 +476,8 @@ static int dsi_j_720p_5_postpoweron(struct device *dev) } usleep_range(3000, 5000); - gpio_set_value(dsi_j_720p_5_pdata.dsi_panel_rst_gpio, 1); - msleep(20); gpio_set_value(DSI_PANEL_EN_GPIO, 1); - msleep(20); + msleep(40); return 0; fail: @@ -501,6 +504,10 @@ static struct tegra_dsi_out dsi_j_720p_5_pdata = { static int dsi_j_720p_5_disable(void) { + gpio_direction_output(dsi_j_720p_5_pdata.dsi_panel_rst_gpio, 0); + gpio_direction_output(DSI_PANEL_EN_GPIO, 0); + usleep_range(5000, 8000); + if (vdd_lcd_bl) regulator_disable(vdd_lcd_bl); |